Recent content by yeny

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    MHB Power Series (Which test can i use to determine divergence at the end points)

    Hello, I was given f(-4x)= 1/(1+4x), and I used the geometric series to find the power series representation of this function. I then took the limit of (-4x)^k by using ratio test. The answer is abs. value of x. So -1/4<x<1/4 I then plugged in those end points to the series going from k=0 to...
    • yeny
    • Thread
    • Divergence Points Power Power series Series Test
    • Replies: 1
    • Forum: Calculus
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    MHB Calculus 2 (Power Series) when the limit is zero by root test

    Hi guys! Here's a problem i was working on. I solved it by root test and got absolute value of x on the outside of the limit and the limit equaled zero. Is it wrong to multiply the outside absolute value by the zero I got from the limit? or is that okay? In general, when we are solving power...
    • yeny
    • Thread
    • Calculus Calculus 2 Limit Power series Root Series Test Zero
    • Replies: 1
    • Forum: Calculus
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    MHB Improper integral from 1 to infinity

    THANK YOU soo much for your help and time. Really appreciate it!
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    MHB Improper integral from 1 to infinity

    Hello everyone, I am stuck on this homework problem. I got up to (ln (b / (b+1) - ln 1 / (1+1) ) but I'm not sure how to go to the red boxed step where they have (1 - 1 / (b+1) ) if anyone can figure it out Id really appreciate it. thank you very much.
    • yeny
    • Thread
    • Improper integral Infinity Integral
    • Replies: 2
    • Forum: Calculus
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    MHB Write 2.158 radians in terms of Pi

    THANK YOU for your help and time!
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    MHB Write 2.158 radians in terms of Pi

    Hello, can someone show me how 2.158 radians can also be written as .687pi? I need to learn how to do this so I can write my answer in terms of pi as opposed to 2.158. Thank you in advance. Yeny
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    MHB Precalculus help --> cos2x=3/5 and 90<x<180

    Hello, can someone please help me with this problem? I have to find the values of the 6 trig functions if the conditions provided hold cos2(theta)=3/5 90 degrees is less than or equal to theta, and theta is also less than or equal to 180 degrees THANK you so much.
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